<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>晚课练习</title>
    <style>
        #zxy{color: green}
        #wk,#ldh{color: aqua}
        h1,h2{background-color: yellow}
        input{color: pink}
        input[type='submit']{background-color: red}
        *{border: 1px solid}
    </style>
</head>
<body>
<ul>
    <li id="zxy">张学友</li>
    <li id="ldh">刘德华</li>
    <li>郭富城</li>
</ul>
<h1 id="wk" >悟空</h1>
<h1>八戒</h1>
<h1>沙僧</h1>
<h2>刘备</h2>

<input type="submit" value="提交按钮">
<input type="button" value="普通按钮">

</body>
</html>